where \(\mathbf {M}_{\sigma }\)  represents the covariance matrix of these cross section measurements, in which the correlations between any two measurements \(\sigma _{i}\)  and \(\sigma _{j}\)  are considered. The resulting cross sections at the four CM energies are listed in Table REF  and shown in Fig. REF  together with the Belle data [1]} for comparison.
<TABLE><FIGURE><FIGURE>